diff --git a/t3/schema.py b/t3/schema.py
index 57393153..630f80af 100644
--- a/t3/schema.py
+++ b/t3/schema.py
@@ -526,6 +526,7 @@ class RMG(BaseModel):
     """
     rmg_execution_type: Optional[str] = None
     memory: Optional[conint(ge=0)] = None
+    cpus: Optional[conint(gt=0)] = None
     database: RMGDatabase
     reactors: List[RMGReactor]
     species: List[RMGSpecies]